Most of RealFlow's force-based daemons provide a falloff function for controlling how the force should vanish.
Creating a Rigid Body Setup
Let's create a basic falloff scenario with a simple rigid body dynamics scene. Here is the setup – the nodes can be added from the appropriate shelves:
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All arrows have exactly the same length, because the force is acting with the same strength at each point:
Activating the Falloff
Enable the daemon's falloff – all parameters located under Node Params > Force Field Falloff:
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When you simulate you will recognize that the inner cubes are stronger affected than their counterparts near the daemon's boundary – this is the falloff's influence:
The falloff creates different zones of attraction (only the MultiBody is visible here).
- Change the MultiBody's “@ density” if necessary.
- Play with “@ falloff percent” to change the size of the falloff zone.
- Set the “@ falloff decay type” to “Quadratic” and “Cubic” and simulate again to see the difference.
- The arrows show you immediately how the forces change with different settings.
- Simulate.